I am sorry your daughter had to put her dog down. I sure understand having to wait for the original owner to participate.
I read your previous post about the CBD with THC, and was initially enthused about trying it. But then I found out it is illegal in my state to buy or sell anything containing THC. So I can't try that product after all. I could try CBD, however.
The plain CBD does not do anything for me but my cousin has Parkinsons and he takes it and says it helps him. I would say give it a try, you can order online so you do not need to go somewhere to get it.